The word suppressant is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 19
Highest Scoring Words With Friends™ Play In The Letters suppressant
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Seven Letter Word Alert: (45 words)
aptness, assents, asserts, assures, entraps, nappers, natures, panters, parents, passers, pasters, pasteup, pasture, paupers, peanuts, petnaps, pressup, pretans, punster, punters, pupates, repasts, resnaps, respans, russets, sappers, saunter, snapper, sparest, stepups, stupers, sunsets, sunstar, suntrap, suppers, surpass, tappers, trepans, trusses, unparse, unrests, unseats, unstrap, untraps, uprates